[Bug 56139] [bisected] kernel 3.7.0-rc1 breaks 6950 (boot/grub2 and suspend/resume) (CAYMAN)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Nov 12 15:31:20 PST 2012
https://bugs.freedesktop.org/show_bug.cgi?id=56139
--- Comment #28 from Alexandre Demers <alexandre.f.demers at gmail.com> ---
Alex, a simple question: you said bit 0 in EVERGREEN_CRTC_CONTROL stops the
CRTC sync. With the culprit commit, when is it set? I mean, I had a quick look
in the driver's code and I couldn't find it. When going in suspend state,
shouldn't it be set to 0? Then, on resume, shouldn't it be set to 1? I may just
have missed it, but could this be something missing? Same questions goes for
GPU soft reset.
Before the culprit commit, we were setting bit 0 to 0 on stop and setting it
back to 1 on resume, which was working great. Why aren't we doing it anymore
when suspending and resuming?
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